On a press call with the media on Thursday, August 23rd, UFC President Dana White announced UFC 151 is cancelled. Headliner Dan Henderson has an injured knee and can't compete in time. White said on the call several opponents turned the fight down, but not Chael Sonnen. However, UFC light heavyweight fighter Jon Jones declined to fight Sonnen.

White also said Jones will now face Lyoto Machida in Toronto on September 22nd at UFC 152.